Paris Hilton was arrested Friday night on possession of cocaine charges. Her boyfriend, who was driving the car, was arrested on DUI charges.

Paris is insisting the the drugs were not hers. She claims to have let a friend use her purse, and didn’t clean it out before she used it. She’s saying that someone put the cocaine in her purse. More from TMZ:

Paris is telling friends, “I had no idea the cocaine was there.  I swear on my life.”

According to Hilton, she was eating sushi at the Wynn hotel with boyfriend Cy Waits, sipping a little wine.  Paris says she was tired and Cy offered to drive her home and then return to the hotel to work.

Paris is telling friends, “It could be a setup.  Everyone knows how against cocaine I am.”

And there’s this … Paris is saying she believes the cops who stopped the car were “star-struck and blew the whole thing way out of proportion.”

Paris tweeted a message to her fans yesterday.

Tags: Paris Hilton